Lamp



FIG. 1 is a perspective view of a lamp in accordance with the claimed design;

FIG. 2 is a side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is an opposite side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top view thereof.

The broken lines in the drawings show portions of the article that form no part of the claimed design. 

CLAIM I claim the ornamental design for a lamp, as shown and described. 